The Harvard researchers urge further trials of fish oils in the treatment of depression and manic-depressive illness.
When someone has depression along with periods of previous or current mania than the individual is diagnosed with bipolar disorder or manic depressive disorder.
It's an extensive issue; too long to cover here but to learn more about bipolar disorder and or manic depressive disorder you can read the DSM-IV.
Bipolar, or manic-depressive disorder, is a mood disorder that causes radical emotional changes and mood swings, from manic highs to depressive lows.
Bipolar I disorder is characterized by manic episodes, the "high" of the manic-depressive cycle.